JavaScript News

Uncovering the Magic Behind Playwright's Fixtures API

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Detect private / incognito browsing

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Parallel execution for Node.js, done right

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ansilight: truecolor syntax highlighting in the terminal with 256 highlight.js themes

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Lift: A blazing‑fast, lightweight TypeScript runner for Node.js — with built‑in monorepo support and TS debugging.

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Table and Cards views with animated transitions on sorting, switching view, and browser resizing (no dependencies, just vanilla Javascript, CSS, and HTML).

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TravelsJS v1.3 - Patch-based undo/redo optimized for large state, small updates, long history, and persistence.

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Runtime Errors in PWAs: Risk Surface and Mitigation

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The Tiny Proxy That Fixed Local Development for Our Multi-Repo Frontend

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A new Google-like Calendar Component for your Svelte, React or Vue App

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Postmortem: TanStack npm supply-chain compromise

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Your GitHub Profile README Is Boring. Here's How to Fix It with SVG and GitHub Actions.

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vite-plugin-federation v1.0 - A Vite/Rollup plugin for Module Federation.

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I keep tripping over "true, false, true"

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[AI] Claude Code Agent Monitoring & Observability on VSCode

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Van Tharp marble game simulator

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ReactUse — Open-source collection of 226 React hooks with full TS types and SSR-safe semantics

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Alphorn - open-source, self-hostable notification service

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Animated text loop: Lissajous curves

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A look at where the bytes are gonig when we deliver optimized JavaScript

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Node.js 24.16.0 (LTS)

Node.js 26.2.0 (Current)

Dr. Axel's blog is gone (for now)

#​786 — May 19, 2026 Read on the Web JavaScript Weekly RFC: It’s Time for npm to Make Install Scripts Opt-In — npm is the only major package manager that runs dependency instal...

Node.js 22.22.3 (LTS)

Cryptographically valid malware hits npm

#​785 — May 12, 2026 Read on the Web JavaScript Weekly Anatomy of the TanStack npm Compromise — A new strain of the Shai-Hulud worm pushed malicious versions of TanStack packag...

Axios to WHATWG Fetch

Node.js 26.1.0 (Current)

Node.js 26.0.0 (Current)

Remix 3 drops React

#​784 — May 5, 2026 Read on the Web JavaScript Weekly Remix 3 Enters Beta — It's No Longer a React Framework — Remix has quite the back story. Created by the duo behind React Rou...

What’s actually new in JavaScript (and what’s coming next)

#​783 — April 28, 2026 Read on the Web JavaScript Weekly pnpm 11.0 Released — You’ve heard about its benefits, but now the popular package management tool is even better. v11 s...

Trip report: Node.js collaboration summit (2026 London)

Node.js 24.15.0 (LTS)

Security Bug Bounty Program Paused Due to Loss of Funding

Node.js 25.9.0 (Current)

Developing a minimally HashDoS resistant, yet quickly reversible integer hash for V8

Node.js 25.8.2 (Current)

Node.js 24.14.1 (LTS)

Node.js 22.22.2 (LTS)

Node.js 20.20.2 (LTS)

Tuesday, March 24, 2026 Security Releases

Node.js 25.8.1 (Current)

Evolving the Node.js Release Schedule

Node.js 22.22.1 (LTS)

Node.js 20.20.1 (LTS)

The React Foundation: A New Home for React Hosted by the Linux Foundation

The React Foundation has officially launched, hosted by the Linux Foundation.

Denial of Service and Source Code Exposure in React Server Components

Security researchers have found and disclosed two additional vulnerabilities in React Server Components while attempting to exploit the patches in last week’s critical vulnerability. High vulnerabilit...

Critical Security Vulnerability in React Server Components

There is an unauthenticated remote code execution vulnerability in React Server Components. A fix has been published in versions 19.0.1, 19.1.2, and 19.2.1. We recommend upgrading immediately.

React Conf 2025 Recap

Last week we hosted React Conf 2025, in this post, we summarize the talks and announcements from the event...

React Compiler v1.0

We are releasing the compiler's first stable release today.

Introducing the React Foundation

Today, we're announcing our plans to create the React Foundation a new technical governance structure

React 19.2

React 19.2 adds new features like Activity, React Performance Tracks, useEffectEvent, and more.

React Labs: View Transitions, Activity, and more

In React Labs posts, we write about projects in active research and development. In this post, we're sharing two new experimental features that are ready to try today, and updates on other areas we're...

Sunsetting Create React App

Today, we’re deprecating Create React App for new apps, and encouraging existing apps to migrate to a framework, or to migrate to a build tool like Vite, Parcel, or RSBuild. We’re also providing docs...

React v19

React 19 is now available on npm! In this post, we'll give an overview of the new features in React 19, and how you can adopt them.

React Compiler Beta Release

At React Conf 2024, we announced the experimental release of React Compiler, a build-time tool that optimizes your React app through automatic memoization. In this post, we want to share what's next f...

React Conf 2024 Recap

Last week we hosted React Conf 2024, a two-day conference in Henderson, Nevada where 700+ attendees gathered in-person to discuss the latest in UI engineering. In this post, we'll summarize the talks...

React 19 Upgrade Guide

The improvements added to React 19 require some breaking changes, but we've worked to make the upgrade as smooth as possible and we don't expect the changes to impact most apps. In this post, we will...

React Labs: What We've Been Working On – February 2024

In React Labs posts, we write about projects in active research and development. We’ve made significant progress since our last update, and we’d like to share our progress.

React Canaries: Enabling Incremental Feature Rollout Outside Meta

We'd like to offer the React community an option to adopt individual new features as soon as their design is close to final, before they're released in a stable version--similar to how Meta has long u...

React Labs: What We've Been Working On – March 2023

In React Labs posts, we write about projects in active research and development. We've made significant progress on them since our last update, and we'd like to share what we learned.

Introducing react.dev

Today we are thrilled to launch react.dev, the new home for React and its documentation. In this post, we would like to give you a tour of the new site.

React Labs: What We've Been Working On – June 2022

React 18 was years in the making, and with it brought valuable lessons for the React team. Its release was the result of many years of research and exploring many paths. Some of those paths were succe...

React v18.0

React 18 is now available on npm! In our last post, we shared step-by-step instructions for upgrading your app to React 18. In this post, we'll give an overview of what's new in React 18, and what it...

How to Upgrade to React 18

As we shared in the release post, React 18 introduces features powered by our new concurrent renderer, with a gradual adoption strategy for existing applications. In this post, we will guide you throu...